She had just finished her homework ____ her mother asked her to practice playing

题型：不详难度：来源：

She had just finished her homework ____ her mother asked her to practice playing the piano yesterday.

A．when

B．while

C．after

D．since

答案

解析

考查连接词。根据主从句的动词时态可知主句谓语动词的动作在从句谓语动词之前已经完成，引导词的意思是：当……的时候，选A。

举一反三

______ the police thought he was the most likely one, since they had no exact proof about it, they could not arrest him.

A．Although

B．As long as

C．If only

D．As soon as

题型：不详难度：| 查看答案

It just isn’t fair_____ I was working as a waiter last month; my friends were lying on the beach. .

A whenever B. though C. for D. while

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She is very dear to us. We have been prepared to do ______ it takes to save her life.

A．whichever

B．however

C．whatever

D．whoever

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The little girl who got lost decided to remain _________she was and wait tor her mother.

A．where

B．what

C．how

D．who

题型：不详难度：| 查看答案

------shall we have our picnic tomorrow?

-----______it doesn’t rain.

A．Until

B．While

C．Once

D．If

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